Configure the location of entities using @EntityScan in Spring Boot entry point class. Update on Sept 2016: For Spring Boot 1.4+: use org.springframework.boot.autoconfigure.domain.EntityScan instead of org.springframework.boot.orm.jpa.EntityScan, as …boot.orm.jpa.EntityScan is deprecated as of Spring Boot 1.4
For starters you should stop using @RequestParam and put all your search fields in an object (maybe reuse the Travel object for that). Then you have 2 options which you could use to dynamically build a query Use the JpaSpecificationExecutor and write a Specification Use the QueryDslPredicateExecutor and use QueryDSL to write a predicate. Using … Read more
tl;dr The key to that is not so much anything in Spring Data REST – as you can easily get it to work in your scenario – but making sure that your model keeps both ends of the association in sync. The problem The problem you see here arises from the fact that Spring Data … Read more
@Where(clause=”is_active=1″) is not the best way to handle soft delete with spring data jpa. First, it only works with hibernate implement. Second, you can never fetch soft deleted entities with spring data. My solution is el provided by spring data. #{#entityName} expression can be used on generic repository represent concrete entity type name. And code … Read more
There’s not a particularly easy way to add a Hibernate interceptor that is also a Spring Bean but you can easily add an interceptor if it’s managed entirely by Hibernate. To do that add the following to your application.properties: spring.jpa.properties.hibernate.ejb.interceptor=my.package.MyInterceptorClassName If you need the Interceptor to also be a bean you can create your own … Read more
The EntityManager doesn’t flush change automatically by default. You should use the following option with your statement of query: @Modifying(clearAutomatically = true) @Query(“update RssFeedEntry feedEntry set feedEntry.read =:isRead where feedEntry.id =:entryId”) void markEntryAsRead(@Param(“entryId”) Long rssFeedEntryId, @Param(“isRead”) boolean isRead);
“Convenient” and “powerful to use” are contradicting goals to some degree. Repositories are by far more convenient than templates but the latter of course give you more fine-grained control over what to execute. As the repository programming model is available for multiple Spring Data modules, you’ll find more in-depth documentation for it in the general … Read more
JpaRepository extends PagingAndSortingRepository which in turn extends CrudRepository. Their main functions are: CrudRepository mainly provides CRUD functions. PagingAndSortingRepository provides methods to do pagination and sorting records. JpaRepository provides some JPA-related methods such as flushing the persistence context and deleting records in a batch. Because of the inheritance mentioned above, JpaRepository will have all the functions … Read more
I solved this error by renaming field to the name without underscore. @Column(name = “municipal_id”, nullable = false) private Integer municipalId; // <– field was renamed
You will have to make an explicit call on the lazy collection in order to initialize it (common practice is to call .size() for this purpose). In Hibernate there is a dedicated method for this (Hibernate.initialize()), but JPA has no equivalent of that. Of course you will have to make sure that the invocation is … Read more